PCF8574PW vs PCA9534PW Vergleich
Detaillierter Direktvergleich von PCF8574PW von Texas Instruments und PCA9534PW von NXP Semiconductors. Vergleichen Sie die wichtigsten Spezifikationen, elektrischen Parameter, Gehäuse, Lebenszyklusstatus, Preise und Verfügbarkeit, um das beste Bauteil für Ihre Designanforderungen zu ermitteln.
Texas Instruments
PCF8574PW - 8-bit I2C I/O Expander 20-TSSOP | Texas Instruments (Tape & Reel)
PCF8574PW ✓ Aktiv
Spezifikationsvergleich
| Parameter | PCF8574PW | PCA9534PW |
|---|---|---|
| Marke | Texas Instruments | NXP Semiconductors |
| Kategorie | Interface ICs | Interface ICs |
| Lebenszyklusstatus | Aktiv | Aktiv |
| Funktion | I/O Expander | — |
| Number of I/O | 8 | — |
| Schnittstelle | I2C (SMBus compatible) | I2C-bus and SMBus |
| Clock Frequency (Max) | 100 kHz | — |
| I2C Address Base | 0x20 (PCF8574A: 0x38) | — |
| Supply Voltage (VCC) | 2.5 V to 6 V | — |
| Supply Current (Standby) | 2.5 uA typical | — |
| Interrupt Output | Yes (active-low INT) | Yes |
| Hardware Address Pins | 3 (A0, A1, A2) | — |
| Max Devices on Bus | 8 (16 combined with PCF8574A) | — |
| Output Drive (Source/Sink) | 25 mA / 25 mA per I/O | — |
| I/O Type | Quasi-bidirectional (no direction register) | — |
| Gehäuse | 20-pin TSSOP (PW) | 16-pin TSSOP |
| Betriebstemperatur | -40 C to +85 C | [DATA_NEEDED: operating temperature range] |
| Montageart | Surface Mount | Surface Mount |
| RoHS-Status | Compliant | [DATA_NEEDED: RoHS status] |
| MSL-Level | 1 (unlimited floor life) | — |
| Device Type | — | 8-bit CMOS I2C-bus and SMBus low-power I/O port expander |
| Number of GPIO Pins | — | 8 |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| I2C Bus Frequency | — | 400 kHz |
| Configuration Registers | — | Yes |
| Address Configuration Pins | — | A0, A1, and A2 |
| Maximum Devices Sharing Bus | — | 8 devices per manufacturer data |
| Internal I/O Pull-up Resistors | — | Removed |
| Pin-Anzahl | — | 16 pins |
| PCF8574 Compatibility | — | Pin-to-pin and I2C address compatible; software changes required |
| Manufacturer | — | NXP Semiconductors |
| Lebenszyklusstatus | — | Active |
| REACH Status | — | [DATA_NEEDED: REACH status] |